Hoping to be an official voice in the fight against a proposed Walmart on Arsenal Street, Mike Mandel announced his write-in candidacy for one of four at-large Town Council seats in Tuesday’s annual town election. “My feeling as a 12-year Watertown resident is that the effect that this development would have on this community is outrageously negative,” said Mandel in an Oct. 25 statement announcing his campaign. “Traffic, crime, the killing off of local businesses, big-box poor-quality goods, minimum wage jobs is just the beginning of my opposition to this idea. Property values will decline for all residential properties near this development,” he stated. Since he missed the filing deadline to have his name on Tuesday’s ballot, Mandel is asking voters to write in his name and address, 124 Maplewood St. The four candidates on the ballot - Tony Palomba, Susan Falkoff, John Donohue, and Steve Corbett - are all incumbents and have been running uncontested. Visit www.mikemandel.info for details about his candidacy. Meanwhile, a Walmart spokesman says the new store will mean jobs and lower prices for food and other items. Steve Restivo told Boston.com that before Walmart submits its final proposal next year, store officials will meet with citizens to discuss their concerns. - Megan McKee